Right now, just don’t say anything. Not a word.
Anything you say or do will piss me off. I don’t care who you are or what you mean to me, just leave me alone.
I intend to do as little as possible by way of interaction with the family until the very second I can be alone tonight. If I have to go to bed before nine, fine.
But god help anyone who tries to get in my face before then. It’s really not a good idea.